From 19492f7e7b1854d62ee5ae3f37ca4d6dcd9e50fd Mon Sep 17 00:00:00 2001
From: 23rd <23rd@vivaldi.net>
Date: Wed, 28 Aug 2024 01:12:59 +0300
Subject: [PATCH] Improved prize description for credits in box for giveaway
 creation.

---
 Telegram/Resources/langs/lang.strings         |  7 ++
 .../boosts/create_giveaway_box.cpp            | 85 ++++++++++++++-----
 2 files changed, 71 insertions(+), 21 deletions(-)

diff --git a/Telegram/Resources/langs/lang.strings b/Telegram/Resources/langs/lang.strings
index adeba7e34d..94ad89f2c7 100644
--- a/Telegram/Resources/langs/lang.strings
+++ b/Telegram/Resources/langs/lang.strings
@@ -2801,6 +2801,13 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_giveaway_prizes_just_premium#other" = "All prizes: **{count}** Telegram Premium subscriptions {duration}.";
 "lng_giveaway_prizes_additional#one" = "All prizes: **{count}** {prize} with Telegram Premium subscription {duration}.";
 "lng_giveaway_prizes_additional#other" = "All prizes: **{count}** {prize} with Telegram Premium subscriptions {duration}.";
+"lng_giveaway_additional_credits_about" = "Turn this on if you want to give the winners your own prizes in addition to Stars.";
+"lng_giveaway_prizes_just_credits#one" = "All prizes: **{count}** Star.";
+"lng_giveaway_prizes_just_credits#other" = "All prizes: **{count}** Stars.";
+"lng_giveaway_prizes_additional_credits#one" = "All prizes: **{count}** {prize} with {amount}.";
+"lng_giveaway_prizes_additional_credits#other" = "All prizes: **{count}** {prize} with {amount}.";
+"lng_giveaway_prizes_additional_credits_amount#one" = "{count} Star";
+"lng_giveaway_prizes_additional_credits_amount#other" = "{count} Stars";
 "lng_giveaway_show_winners" = "Show winners";
 "lng_giveaway_show_winners_about" = "Choose whether to make the list of winners public when the giveaway ends.";
 
diff --git a/Telegram/SourceFiles/info/channel_statistics/boosts/create_giveaway_box.cpp b/Telegram/SourceFiles/info/channel_statistics/boosts/create_giveaway_box.cpp
index 99f17a871f..ac2d48783c 100644
--- a/Telegram/SourceFiles/info/channel_statistics/boosts/create_giveaway_box.cpp
+++ b/Telegram/SourceFiles/info/channel_statistics/boosts/create_giveaway_box.cpp
@@ -1052,29 +1052,31 @@ void CreateGiveawayBox(
 		const auto listOptions = (type == GiveawayType::SpecificUsers)
 			? listOptionsSpecific
 			: listOptionsRandom;
-		Ui::AddSubsectionTitle(
-			listOptions,
-			tr::lng_giveaway_duration_title(
-				lt_count,
-				rpl::single(usersCount) | tr::to_count()),
-			st::giveawayGiftCodeChannelsSubsectionPadding);
-		Ui::Premium::AddGiftOptions(
-			listOptions,
-			durationGroup,
-			state->apiOptions.options(usersCount),
-			st::giveawayGiftCodeGiftOption,
-			true);
+		if (type != GiveawayType::Credits) {
+			Ui::AddSubsectionTitle(
+				listOptions,
+				tr::lng_giveaway_duration_title(
+					lt_count,
+					rpl::single(usersCount) | tr::to_count()),
+				st::giveawayGiftCodeChannelsSubsectionPadding);
+			Ui::Premium::AddGiftOptions(
+				listOptions,
+				durationGroup,
+				state->apiOptions.options(usersCount),
+				st::giveawayGiftCodeGiftOption,
+				true);
 
-		Ui::AddSkip(listOptions);
+			Ui::AddSkip(listOptions);
 
-		auto termsContainer = object_ptr<Ui::VerticalLayout>(listOptions);
-		addTerms(termsContainer.data());
-		listOptions->add(object_ptr<Ui::DividerLabel>(
-			listOptions,
-			std::move(termsContainer),
-			st::defaultBoxDividerLabelPadding));
+			auto termsContainer = object_ptr<Ui::VerticalLayout>(listOptions);
+			addTerms(termsContainer.data());
+			listOptions->add(object_ptr<Ui::DividerLabel>(
+				listOptions,
+				std::move(termsContainer),
+				st::defaultBoxDividerLabelPadding));
 
-		Ui::AddSkip(listOptions);
+			Ui::AddSkip(listOptions);
+		}
 
 		box->verticalLayout()->resizeToWidth(box->width());
 	};
@@ -1202,8 +1204,49 @@ void CreateGiveawayBox(
 				TextWithEntities{ duration },
 				Ui::Text::RichLangValue);
 		});
+		auto creditsAdditionalAbout = rpl::combine(
+			state->additionalPrize.value(),
+			state->sliderValue.value(),
+			creditsGroup->value()
+		) | rpl::map([=](QString prize, int users, int creditsIndex) {
+			const auto credits = creditsOption(creditsIndex).credits;
+			return prize.isEmpty()
+				? tr::lng_giveaway_prizes_just_credits(
+					tr::now,
+					lt_count,
+					credits,
+					Ui::Text::RichLangValue)
+				: tr::lng_giveaway_prizes_additional_credits(
+					tr::now,
+					lt_count,
+					users,
+					lt_prize,
+					TextWithEntities{ prize },
+					lt_amount,
+					tr::lng_giveaway_prizes_additional_credits_amount(
+						tr::now,
+						lt_count,
+						credits,
+						Ui::Text::RichLangValue),
+					Ui::Text::RichLangValue);
+		});
 
-		Ui::AddDividerText(additionalWrap, std::move(additionalAbout));
+		auto creditsValueType = typeGroup->value(
+		) | rpl::map(rpl::mappers::_1 == GiveawayType::Credits);
+
+		Ui::AddDividerText(
+			additionalWrap,
+			rpl::conditional(
+				additionalToggle->toggledValue(),
+				rpl::conditional(
+					rpl::duplicate(creditsValueType),
+					std::move(creditsAdditionalAbout),
+					std::move(additionalAbout)),
+				rpl::conditional(
+					rpl::duplicate(creditsValueType),
+					tr::lng_giveaway_additional_credits_about(),
+					tr::lng_giveaway_additional_about()
+				) | rpl::map(Ui::Text::WithEntities)));
 		Ui::AddSkip(additionalWrap);
 	}